Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Follicular Cyst

TermDefinition
Clinical Features of Follicular Cyst The name is based on location. The cyst is keratin filled, skin colored, and firm. It appears as a singl,e sessile nodule which is freely movable.
Microscopic Features of Follicular Cyst Epidermoid has stratified squamous epithelium (SSE) containing a granular layer, filled with concentric layers of lamellated keratin. Pilar has an abrupt transition from SSE to the lumen filled with compact keratin; no granular layer.
Differential Diagnosis of Follicular Cyst Epidermoid Cyst, Pilar Cyst, Sebaceous Cyst. Having cheesy, foul-smelling keratinous content in the cyst and present during excision/drainage is diagnostic for Epidermoid Cyst.
Treatment of Follicular Cyst Surgical Excision is the treatment and submission of tissue for a definitive diagnosis is required. Excellent prognosis with no cancerous transformation is observed.
Demographics of Follicular Cyst The most common follicular cyst is the epidermoid cyst (80%) with it being most common in acne prone areas of HN and back. The Pilar Cyst (10-15%) is more common on the scalp (90% with 2F:1M. It is solitary in 30% of cases and multiple in 70% of cases.
Epidermic (Infundibulum) Cyst It is a skin colored, dome-shaped nodule (0.5-5cm) from the infundibulum of a hair follicle, located in the dermis. It is firm, but malleable; semi-solid content. Multiple epidermoid cysts is a feature of Gardner's Syndrome.
Pilar Cyst It is most commonly found on the scalp (90%), is hereditary, smooth, mobile, and filled w/ keratin in the hair, nails, skin, and horns. It is derived from the outer root sheath of the follicle with an unknown etiology. It rarely forms tricholemmal tumors.